/* ========================================
   塔坤建站 - 首页专属样式
   错位网格创意布局
   ======================================== */

/* Hero Banner 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--retro-cream) 0%, #e8d4c0 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(196, 69, 54, 0.03) 2px,
            rgba(196, 69, 54, 0.03) 4px
        );
    pointer-events: none;
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 900px;
    padding: 40px;
}

.hero-title {
    font-size: 64px;
    color: var(--retro-dark);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 5px;
    line-height: 1.2;
    animation: textPulse 2s ease-in-out infinite;
}

@keyframes textPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.hero-subtitle {
    font-size: 22px;
    color: var(--retro-blue);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 错位网格布局 */
.grid-section {
    padding: 100px 0;
    background: var(--retro-light);
}

.misaligned-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 30px;
    padding: 40px 0;
}

.grid-item {
    background: var(--retro-cream);
    border: 3px solid var(--retro-dark);
    padding: 30px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
}

.grid-item:hover {
    transform: translate(-5px, -5px);
    box-shadow: 8px 8px 0 var(--retro-dark);
}

/* 独特的网格错位排列 */
.grid-item-1 {
    grid-column: 1 / 7;
    grid-row: 1;
    background: var(--retro-red);
    color: var(--retro-light);
}

.grid-item-2 {
    grid-column: 7 / 13;
    grid-row: 1 / 3;
    background: var(--retro-blue);
    color: var(--retro-light);
}

.grid-item-3 {
    grid-column: 1 / 5;
    grid-row: 2;
    margin-top: 40px;
    background: var(--retro-yellow);
    color: var(--retro-dark);
}

.grid-item-4 {
    grid-column: 5 / 9;
    grid-row: 2 / 4;
    background: var(--retro-dark);
    color: var(--retro-cream);
}

.grid-item-5 {
    grid-column: 9 / 13;
    grid-row: 3;
    background: var(--retro-red);
    color: var(--retro-light);
}

.grid-item-6 {
    grid-column: 1 / 6;
    grid-row: 4;
    background: var(--retro-blue);
    color: var(--retro-light);
}

.grid-item-7 {
    grid-column: 6 / 13;
    grid-row: 4;
    background: var(--retro-yellow);
    color: var(--retro-dark);
}

.grid-item-title {
    font-size: 24px;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.grid-item-text {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.9;
}

/* 核心优势板块 */
.features-section {
    padding: 100px 0;
    background: var(--retro-dark);
    color: var(--retro-cream);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 3px solid var(--retro-yellow);
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--retro-yellow);
    color: var(--retro-dark);
    transform: translateY(-10px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.feature-title {
    font-size: 20px;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.feature-desc {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.9;
}

/* 快速入口 */
.quick-access {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--retro-red) 0%, #a33a2a 100%);
}

.access-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.access-item {
    background: var(--retro-light);
    border: 3px solid var(--retro-dark);
    padding: 30px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--retro-dark);
    transition: all 0.3s ease;
}

.access-item:hover {
    background: var(--retro-yellow);
    transform: scale(1.05);
}

.access-icon {
    font-size: 36px;
    margin-bottom: 15px;
    display: block;
}

.access-title {
    font-size: 16px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 资讯列表区域 */
.news-section {
    padding: 100px 0;
    background: var(--retro-cream);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.news-card {
    background: var(--retro-light);
    border: 3px solid var(--retro-dark);
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 8px 8px 0 var(--retro-dark);
}

.news-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 3px solid var(--retro-dark);
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 12px;
    color: var(--retro-red);
    margin-bottom: 10px;
    font-weight: bold;
}

.news-title {
    font-size: 16px;
    color: var(--retro-dark);
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-excerpt {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .misaligned-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .grid-item-1 { grid-column: 1 / 4; grid-row: 1; }
    .grid-item-2 { grid-column: 4 / 7; grid-row: 1 / 3; }
    .grid-item-3 { grid-column: 1 / 3; grid-row: 2; margin-top: 30px; }
    .grid-item-4 { grid-column: 3 / 6; grid-row: 2 / 4; }
    .grid-item-5 { grid-column: 6 / 7; grid-row: 3; }
    .grid-item-6 { grid-column: 1 / 4; grid-row: 4; }
    .grid-item-7 { grid-column: 4 / 7; grid-row: 4; }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .misaligned-grid {
        grid-template-columns: 1fr;
    }
    
    .grid-item-1,
    .grid-item-2,
    .grid-item-3,
    .grid-item-4,
    .grid-item-5,
    .grid-item-6,
    .grid-item-7 {
        grid-column: 1 / -1;
        grid-row: auto;
        margin-top: 0;
    }
    
    .access-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .access-grid {
        grid-template-columns: 1fr;
    }
}